Good day. I've been reading older posts regarding the K & N air intake filter and now I'm concerned about the quality of the filter. I've read about dusting issues and swapping the filter out. My truck had the K & N filter mod done to it by the previous owner and I thought it was a good thing until I started reading about other users opinions. I think I'm convinced now to swap out the filter for a replaceable element like the napa 6637 or the fram equivalent. I don't have the stock air intake pipe any longer so I'm wondering if these other filters will direct fit on my existing K & N intake pipe or if I have to do some more work. I'd appreciate any feedback.
My truck is a 1996 F350 Crewcab 4x4 7.3L PSD DRW.

Also, If you have everything stock from the Crankcase Breather Adapter back to the Turbo, you could just get a Tymar setup (Cary at CT Performance sells them) since it has a new hose from the breather adapter to the exhaust elbow that attaches to the filter. Plug-N-Play! Cheers!

One other question that came to mind. Once the 6637 filter is installed, what do I need to do to keep it dry? I'm nervous that rain or other moisture will get on the paper filter rendering it basically useless. The stock one is encased in a plastic waterproof box and the K & N is covered in oil from the recharge kit. Any thoughts?

If you get the Donaldson filter, it is water-resistant. Folks from snow country and Washington/Oregon area have not had problems with water. I did not have any issues on my 94's setup (and we get snow here too). Cheers!

One other question that came to mind. Once the 6637 filter is installed, what do I need to do to keep it dry? I'm nervous that rain or other moisture will get on the paper filter rendering it basically useless. The stock one is encased in a plastic waterproof box and the K & N is covered in oil from the recharge kit. Any thoughts?

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